/Engine/Source/Runtime/Online/HTTP/Public/HttpRequestAdapter.h
Sets the content of the request to stream directly from an archive. NOTE: The Stream->Serialize will be called from another thread other than the game thread
True if the archive can be used to stream the request. False otherwise.
virtual bool SetContentFromStream ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FArchive](API\Runtime\Core\Serialization\FArchive), ESPMode::ThreadSafe > Stream )